The development of quantum mechanics early in the twentieth century obliged physicists to change radically the concepts they used to describe the world.
If I have this child? Why wasn’t it obvious to me that I already had a child, who was growing inside of me? Once you are pregnant, there is no if. That child, though tiny and in an early stage of development, already exists!
We are concerned, not with the development of just one capacity, such as that of a mathematician, or a scientist, or a musician, but with the total development of the student as a human
being.
This is the moment when we must build on the wealth that open markets have created, and share its benefits more equitably. Trade has been a cornerstone of our growth and global development. But we will not be able to sustain this growth if it favors the few, and not the many.
We, as Aryans, can conceive of the state only as the living organism of a nationality which not only assures the preservation of its nationality, but by the development of its spiritual and ideal abilities leads it to the highest freedom.
[Heisenberg's seminal 1925 paper initiating quantum mechanics marked] one of the great jumps—perhaps the greatest—in the development of twentieth century physics.